JAJSF66B
april 2018 – february 2023
TPS62147
,
TPS62148
PRODUCTION DATA
1
特長
2
アプリケーション
3
概要
4
Revision History
5
Device Comparison Table
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Typical Characteristics
8
Parameter Measurement Information
8.1
Schematic
9
Detailed Description
9.1
Overview
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Precise Enable
9.3.2
Power Good (PG)
9.3.3
MODE
9.3.4
Undervoltage Lockout (UVLO)
9.3.5
Thermal Shutdown
9.4
Device Functional Modes
9.4.1
Pulse Width Modulation (PWM) Operation
9.4.2
Power Save Mode Operation (PWM/PFM)
9.4.3
100% Duty-Cycle Operation
9.4.4
Current Limit And Short Circuit Protection (for TPS62148)
9.4.5
HICCUP Current Limit And Short Circuit Protection (for TPS62147)
9.4.6
Soft Start / Tracking (SS/TR)
9.4.7
Output Discharge Function (TPS62148 only)
9.4.8
Starting into a Pre-Biased Load
10
Application and Implementation
10.1
Application Information
10.1.1
Programming the Output Voltage
10.1.2
External Component Selection
10.1.3
Inductor Selection
10.1.4
Capacitor Selection
10.1.4.1
Output Capacitor
10.1.4.2
Input Capacitor
10.1.4.3
Soft-Start Capacitor
10.1.5
Tracking Function
10.1.6
Output Filter and Loop Stability
10.2
Typical Applications
10.2.1
Typical Application with Adjustable Output Voltage
10.2.1.1
Design Requirements
10.2.1.2
Detailed Design Procedure
10.2.1.3
Application Curves
10.3
System Examples
10.3.1
LED Power Supply
10.3.2
Powering Multiple Loads
10.3.3
Voltage Tracking
10.3.4
Precise Soft-Start Timing
10.4
Power Supply Recommendations
10.5
Layout
10.5.1
Layout Guidelines
10.5.2
Layout Example
10.5.3
Thermal Considerations
11
Device and Documentation Support
11.1
Device Support
11.1.1
サード・パーティ製品に関する免責事項
11.2
ドキュメントの更新通知を受け取る方法
11.3
サポート・リソース
11.4
Trademarks
11.5
静電気放電に関する注意事項
11.6
用語集
12
Mechanical, Packaging, and Orderable Information
パッケージ・オプション
メカニカル・データ(パッケージ|ピン)
RGX|11
MPQF454
サーマルパッド・メカニカル・データ
発注情報
jajsf66b_oa
jajsf66b_pm
10.5.2
Layout Example
Figure 10-85
Layout